“We see something, react to it and, typically, it’s over quickly,” says Lt. Steve Tenney of the Keene, New Hampshire, Police Department.

But on the morning of Sept. 8, while Steve lay in a hospital bed at Lahey Hospital & Medical Center in Burlington, Massachusetts, action/reaction wasn’t part of the equation. This time, there was time to think. Even so, the decision to donate a piece of his liver to save Sloan — a baby he’d never even met — was made without hesitation.